Screw-spike.



T. E. BUCK.

SCREW SPIKE.

APPLqcATmN FILED APR.24. 1913.

1,186,168. Patentedune 6, 1916.

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TURNEY E. BUCK, 0F CHICAGO, ILLINOIS.

SCREW-SPIKE.

Specification of Letters Patent.

Patented June 6, 1916.

Application led April 24, 1913. Serial No. 763,34.

To aZZ whom t may concern.'

Be it known that I, TURNEY E. BUCK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Screw-Spike, of which the following is a speciication. 1`

This invention relates primarily to means for securing the rails of railroad tracks to the ties or other supporting structure.

The primary purpose of the invention is to provide a rail-fastening device adapted to iXedly attach a rail supporting device to the tie, and in the same unit a structural adaptation to detachably connect the rail with its support, while permitting at the same time the removal and adjustment of the rail without disturbing the spike or the plate attached therewith. I further provide in the said device means ,whereby to lock the nut and rail in any position. And I further propose in said invention to provide means for preventing an over-turning .or spreading of the rail.

I illustrate my invention in the accompanying drawings in which:

Figure 1 shows a plan view of my invention.4 Fig. 2 shows a modied form of the same, and Fig. 3 is a diagrammatic view of a structure embodying my invention, the tie, the tie-plate or chair, the rail clips, the nut and the keys being shown in section. In this View a screw spike provided with a nut is shown on one side of the rail and a screw spike without a nut is shown on the other side of the rail.

In Fig. l, a spikelis shown whose lower section l is screw-threaded and of ordinary screw structure. I provide at 2 a tapered shoulder adapted to co-act with a countersunk hole in the tie plate. At 3 I provide a circular shank to receive the lateral strain of the rail, and at 4 I provide a threaded section adapted to receive a nut. At 5 I provide a polygonal end to said spike adapted to co-act with a wrench or other similar tool used for driving a screw into a tie.

In Fig. 2, I show a modified form of my invention in providing a square shoulder at 2 adapted to rest upon a tie plate and bring the same into solid contact with the tie; and a circular elongated head 3. I also rovide a longitudinal slot transversely per orating the spike at the point 7 in the head of the spike.

At 6 I show a key of ordinary type adapted to be inserted in the slot 7. If the nut 8 be used the key will bear on the upper face of the nut. If the nut be dispensed with, the key will bear on the upper face of the clip 9, the intention being to effect a device, which in general use has three locking means as a multiplied security in attaching rails to ties. It is well known that with the ordinary type of spike the instant it begms to move there is no security to the rail;

either vertically or horizontally: and with the ordinary screw-spike its action is single in that to remove the rail the entire spike needs to be removed, and any injury to the upper part of the spike begins to release the wholeattaching supporting mechanism. It will be observed in the structure which I claim as my invention, that the tie plate or chair (supporting rail) can be firmly attached and retained in its fixed position by means of my device, independently of the rail and its attaching device: and it will be further observed that the removal of the rail, or an injury to it or its attaching device, does not of necessity aiiect the integrity of the tie plate or the body of the spike in its relation to the tie. It will be further observed that my device'provides the strongest part of its structure at a point of the greatest strain, and thus is best able to resist lateral thrusts of the rail. Further, it will be readily observed that this structure provides the least proportion of loss occasioned by wear and tear and change in rail-setting, 1n that once the spike is set, the only parts necessary to be removed-or nhich are liable to change-are the nut and c 1p.

The form as here shown is intended to cover such reasonable variations as are apparent to the ordinary mechanical mind.

I claim: p

1. The combination in a device of the character described, of a lower body portion having the elements of an ordinary screw; an elongated head of larger diameter than the lower screw*its lower portion forming a shoulder; said head being provided with a shank, surmounted by a threaded body portion adapted to receive ay nut; an upper portion of said body of smaller diameter and polygonal in shape: an elongated slot transversely perforating said head.

2. In a device of the character described the combination in a spike of a screw- I threaded portion adapted to penetrate the tie, an enlarged elongated circular head having. a threaded portion thereon adapted to receive a nut, and a body portion to sustain a thrust; an elongated slot transversely piercing said threaded elongated head: said head terminating in a polygonal part adapted to receive .a tool for'turning said lower screw-threaded portion: a key adapted to- (blank portion adapted to bear the lateral thrust of the rail; and the body of said elongated head being perforated with a longitudinal transverse slot: adjacent to and forming a terminus of said head a polygonal portion; a key adapted to be seated 1n said slot.

4. The combination, in a spike, ot a threaded portion adapted to thread into the tie; means on said spike adapted to clamp the chair or tie plate to the tie, and retain it, fiXedly and independently of means for gripping or clamping the rail: means on said spike 4for detachably fixing, adjusting or removing the rail, independently of the tie attaching means; means for turning or screwing said spike into the tie: means for locking the rail clamping means.

5. In'a device of the character described., the combination of means for threading into a tie and firmly gripping the tie plate or chair supporting the rail; and in the same unit independent means :for detachably securing and gripping the rail, and locln'ng the attaching means.

6. In a device of the character described, the combination of means for threading-into the tie; a shoulder on said device adapted to bring tie and tie-plate into rigid contact; means on said device independent of said tie attachin means, for detachably fixing the rail to tie tie, Without disturbing the connecting device connecting the rail with the ties or other support; means for locking the tie-aiixing means: means for advancing the screw to its seating in the tie.

7. In a screw-spike, the combination of a screw-thread for attaching to a tie or rail supporting device; a threaded portion adapted to receive a nut; a nut thereon, beveled on its lovver side, said nut adapted to co-act With and press upon a rail; a polygonal portion adapted to supply means for advancing said spike into a tie; means for locking said nut When driven to its seating.

8. In a screw-spike, the combination of a threaded portion for screwing into a tie; an enlarged elongated head portion; a shoulder at the junction of the screw and the head portions; on the enlarged head portion-adjacent to said shouldera circular shank adapted to co-act With a hole in a clip or receive the lateral thrust of a rail; a threaded portion adjacent to said shame-adapted to receive a locking nut; an elongated longitudinal slot transversely pertorating the said threaded head portion, adapted and intended to receive a locking key; a polygonal terminal head of diameter smaller than said threaded head, and adjacent thereto.

Signed by meat Chicago. Illinois, this 14 day of April, 1913.

TURNEY E. BUCK.

Witnesses:

GEORGE H. HAND, PAUL M. BRYANT. 

